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linux_dsm_epyc7002/sound/isa/sb/sb16_csp.c
Thomas Gleixner 1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  59 temple place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00

1173 lines
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>
* Takashi Iwai <tiwai@suse.de>
*
* SB16ASP/AWE32 CSP control
*
* CSP microcode loader:
* alsa-tools/sb16_csp/
*/
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/info.h>
#include <sound/sb16_csp.h>
#include <sound/initval.h>
MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>");
MODULE_DESCRIPTION("ALSA driver for SB16 Creative Signal Processor");
MODULE_LICENSE("GPL");
MODULE_FIRMWARE("sb16/mulaw_main.csp");
MODULE_FIRMWARE("sb16/alaw_main.csp");
MODULE_FIRMWARE("sb16/ima_adpcm_init.csp");
MODULE_FIRMWARE("sb16/ima_adpcm_playback.csp");
MODULE_FIRMWARE("sb16/ima_adpcm_capture.csp");
#ifdef SNDRV_LITTLE_ENDIAN
#define CSP_HDR_VALUE(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
#else
#define CSP_HDR_VALUE(a,b,c,d) ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24))
#endif
#define RIFF_HEADER CSP_HDR_VALUE('R', 'I', 'F', 'F')
#define CSP__HEADER CSP_HDR_VALUE('C', 'S', 'P', ' ')
#define LIST_HEADER CSP_HDR_VALUE('L', 'I', 'S', 'T')
#define FUNC_HEADER CSP_HDR_VALUE('f', 'u', 'n', 'c')
#define CODE_HEADER CSP_HDR_VALUE('c', 'o', 'd', 'e')
#define INIT_HEADER CSP_HDR_VALUE('i', 'n', 'i', 't')
#define MAIN_HEADER CSP_HDR_VALUE('m', 'a', 'i', 'n')
/*
* RIFF data format
*/
struct riff_header {
__le32 name;
__le32 len;
};
struct desc_header {
struct riff_header info;
__le16 func_nr;
__le16 VOC_type;
__le16 flags_play_rec;
__le16 flags_16bit_8bit;
__le16 flags_stereo_mono;
__le16 flags_rates;
};
/*
* prototypes
*/
static void snd_sb_csp_free(struct snd_hwdep *hw);
static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file);
static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg);
static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file);
static int csp_detect(struct snd_sb *chip, int *version);
static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val);
static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val);
static int read_register(struct snd_sb *chip, unsigned char reg);
static int set_mode_register(struct snd_sb *chip, unsigned char mode);
static int get_version(struct snd_sb *chip);
static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
struct snd_sb_csp_microcode __user * code);
static int snd_sb_csp_unload(struct snd_sb_csp * p);
static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags);
static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode);
static int snd_sb_csp_check_version(struct snd_sb_csp * p);
static int snd_sb_csp_use(struct snd_sb_csp * p);
static int snd_sb_csp_unuse(struct snd_sb_csp * p);
static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels);
static int snd_sb_csp_stop(struct snd_sb_csp * p);
static int snd_sb_csp_pause(struct snd_sb_csp * p);
static int snd_sb_csp_restart(struct snd_sb_csp * p);
static int snd_sb_qsound_build(struct snd_sb_csp * p);
static void snd_sb_qsound_destroy(struct snd_sb_csp * p);
static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p);
static int init_proc_entry(struct snd_sb_csp * p, int device);
static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer);
/*
* Detect CSP chip and create a new instance
*/
int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep)
{
struct snd_sb_csp *p;
int uninitialized_var(version);
int err;
struct snd_hwdep *hw;
if (rhwdep)
*rhwdep = NULL;
if (csp_detect(chip, &version))
return -ENODEV;
if ((err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw)) < 0)
return err;
if ((p = kzalloc(sizeof(*p), GFP_KERNEL)) == NULL) {
snd_device_free(chip->card, hw);
return -ENOMEM;
}
p->chip = chip;
p->version = version;
/* CSP operators */
p->ops.csp_use = snd_sb_csp_use;
p->ops.csp_unuse = snd_sb_csp_unuse;
p->ops.csp_autoload = snd_sb_csp_autoload;
p->ops.csp_start = snd_sb_csp_start;
p->ops.csp_stop = snd_sb_csp_stop;
p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer;
mutex_init(&p->access_mutex);
sprintf(hw->name, "CSP v%d.%d", (version >> 4), (version & 0x0f));
hw->iface = SNDRV_HWDEP_IFACE_SB16CSP;
hw->private_data = p;
hw->private_free = snd_sb_csp_free;
/* operators - only write/ioctl */
hw->ops.open = snd_sb_csp_open;
hw->ops.ioctl = snd_sb_csp_ioctl;
hw->ops.release = snd_sb_csp_release;
/* create a proc entry */
init_proc_entry(p, device);
if (rhwdep)
*rhwdep = hw;
return 0;
}
/*
* free_private for hwdep instance
*/
static void snd_sb_csp_free(struct snd_hwdep *hwdep)
{
int i;
struct snd_sb_csp *p = hwdep->private_data;
if (p) {
if (p->running & SNDRV_SB_CSP_ST_RUNNING)
snd_sb_csp_stop(p);
for (i = 0; i < ARRAY_SIZE(p->csp_programs); ++i)
release_firmware(p->csp_programs[i]);
kfree(p);
}
}
/* ------------------------------ */
/*
* open the device exclusively
*/
static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file)
{
struct snd_sb_csp *p = hw->private_data;
return (snd_sb_csp_use(p));
}
/*
* ioctl for hwdep device:
*/
static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg)
{
struct snd_sb_csp *p = hw->private_data;
struct snd_sb_csp_info info;
struct snd_sb_csp_start start_info;
int err;
if (snd_BUG_ON(!p))
return -EINVAL;
if (snd_sb_csp_check_version(p))
return -ENODEV;
switch (cmd) {
/* get information */
case SNDRV_SB_CSP_IOCTL_INFO:
memset(&info, 0, sizeof(info));
*info.codec_name = *p->codec_name;
info.func_nr = p->func_nr;
info.acc_format = p->acc_format;
info.acc_channels = p->acc_channels;
info.acc_width = p->acc_width;
info.acc_rates = p->acc_rates;
info.csp_mode = p->mode;
info.run_channels = p->run_channels;
info.run_width = p->run_width;
info.version = p->version;
info.state = p->running;
if (copy_to_user((void __user *)arg, &info, sizeof(info)))
err = -EFAULT;
else
err = 0;
break;
/* load CSP microcode */
case SNDRV_SB_CSP_IOCTL_LOAD_CODE:
err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
-EBUSY : snd_sb_csp_riff_load(p, (struct snd_sb_csp_microcode __user *) arg));
break;
case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE:
err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
-EBUSY : snd_sb_csp_unload(p));
break;
/* change CSP running state */
case SNDRV_SB_CSP_IOCTL_START:
if (copy_from_user(&start_info, (void __user *) arg, sizeof(start_info)))
err = -EFAULT;
else
err = snd_sb_csp_start(p, start_info.sample_width, start_info.channels);
break;
case SNDRV_SB_CSP_IOCTL_STOP:
err = snd_sb_csp_stop(p);
break;
case SNDRV_SB_CSP_IOCTL_PAUSE:
err = snd_sb_csp_pause(p);
break;
case SNDRV_SB_CSP_IOCTL_RESTART:
err = snd_sb_csp_restart(p);
break;
default:
err = -ENOTTY;
break;
}
return err;
}
/*
* close the device
*/
static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file)
{
struct snd_sb_csp *p = hw->private_data;
return (snd_sb_csp_unuse(p));
}
/* ------------------------------ */
/*
* acquire device
*/
static int snd_sb_csp_use(struct snd_sb_csp * p)
{
mutex_lock(&p->access_mutex);
if (p->used) {
mutex_unlock(&p->access_mutex);
return -EAGAIN;
}
p->used++;
mutex_unlock(&p->access_mutex);
return 0;
}
/*
* release device
*/
static int snd_sb_csp_unuse(struct snd_sb_csp * p)
{
mutex_lock(&p->access_mutex);
p->used--;
mutex_unlock(&p->access_mutex);
return 0;
}
/*
* load microcode via ioctl:
* code is user-space pointer
*/
static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
struct snd_sb_csp_microcode __user * mcode)
{
struct snd_sb_csp_mc_header info;
unsigned char __user *data_ptr;
unsigned char __user *data_end;
unsigned short func_nr = 0;
struct riff_header file_h, item_h, code_h;
__le32 item_type;
struct desc_header funcdesc_h;
unsigned long flags;
int err;
if (copy_from_user(&info, mcode, sizeof(info)))
return -EFAULT;
data_ptr = mcode->data;
if (copy_from_user(&file_h, data_ptr, sizeof(file_h)))
return -EFAULT;
if ((le32_to_cpu(file_h.name) != RIFF_HEADER) ||
(le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) {
snd_printd("%s: Invalid RIFF header\n", __func__);
return -EINVAL;
}
data_ptr += sizeof(file_h);
data_end = data_ptr + le32_to_cpu(file_h.len);
if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
return -EFAULT;
if (le32_to_cpu(item_type) != CSP__HEADER) {
snd_printd("%s: Invalid RIFF file type\n", __func__);
return -EINVAL;
}
data_ptr += sizeof (item_type);
for (; data_ptr < data_end; data_ptr += le32_to_cpu(item_h.len)) {
if (copy_from_user(&item_h, data_ptr, sizeof(item_h)))
return -EFAULT;
data_ptr += sizeof(item_h);
if (le32_to_cpu(item_h.name) != LIST_HEADER)
continue;
if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
return -EFAULT;
switch (le32_to_cpu(item_type)) {
case FUNC_HEADER:
if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h)))
return -EFAULT;
func_nr = le16_to_cpu(funcdesc_h.func_nr);
break;
case CODE_HEADER:
if (func_nr != info.func_req)
break; /* not required function, try next */
data_ptr += sizeof(item_type);
/* destroy QSound mixer element */
if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
snd_sb_qsound_destroy(p);
}
/* Clear all flags */
p->running = 0;
p->mode = 0;
/* load microcode blocks */
for (;;) {
if (data_ptr >= data_end)
return -EINVAL;
if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
return -EFAULT;
/* init microcode blocks */
if (le32_to_cpu(code_h.name) != INIT_HEADER)
break;
data_ptr += sizeof(code_h);
err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len),
SNDRV_SB_CSP_LOAD_INITBLOCK);
if (err)
return err;
data_ptr += le32_to_cpu(code_h.len);
}
/* main microcode block */
if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
return -EFAULT;
if (le32_to_cpu(code_h.name) != MAIN_HEADER) {
snd_printd("%s: Missing 'main' microcode\n", __func__);
return -EINVAL;
}
data_ptr += sizeof(code_h);
err = snd_sb_csp_load_user(p, data_ptr,
le32_to_cpu(code_h.len), 0);
if (err)
return err;
/* fill in codec header */
strlcpy(p->codec_name, info.codec_name, sizeof(p->codec_name));
p->func_nr = func_nr;
p->mode = le16_to_cpu(funcdesc_h.flags_play_rec);
switch (le16_to_cpu(funcdesc_h.VOC_type)) {
case 0x0001: /* QSound decoder */
if (le16_to_cpu(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) {
if (snd_sb_qsound_build(p) == 0)
/* set QSound flag and clear all other mode flags */
p->mode = SNDRV_SB_CSP_MODE_QSOUND;
}
p->acc_format = 0;
break;
case 0x0006: /* A Law codec */
p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
break;
case 0x0007: /* Mu Law codec */
p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
break;
case 0x0011: /* what Creative thinks is IMA ADPCM codec */
case 0x0200: /* Creative ADPCM codec */
p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
break;
case 201: /* Text 2 Speech decoder */
/* TODO: Text2Speech handling routines */
p->acc_format = 0;
break;
case 0x0202: /* Fast Speech 8 codec */
case 0x0203: /* Fast Speech 10 codec */
p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL;
break;
default: /* other codecs are unsupported */
p->acc_format = p->acc_width = p->acc_rates = 0;
p->mode = 0;
snd_printd("%s: Unsupported CSP codec type: 0x%04x\n",
__func__,
le16_to_cpu(funcdesc_h.VOC_type));
return -EINVAL;
}
p->acc_channels = le16_to_cpu(funcdesc_h.flags_stereo_mono);
p->acc_width = le16_to_cpu(funcdesc_h.flags_16bit_8bit);
p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates);
/* Decouple CSP from IRQ and DMAREQ lines */
spin_lock_irqsave(&p->chip->reg_lock, flags);
set_mode_register(p->chip, 0xfc);
set_mode_register(p->chip, 0x00);
spin_unlock_irqrestore(&p->chip->reg_lock, flags);
/* finished loading successfully */
p->running = SNDRV_SB_CSP_ST_LOADED; /* set LOADED flag */
return 0;
}
}
snd_printd("%s: Function #%d not found\n", __func__, info.func_req);
return -EINVAL;
}
/*
* unload CSP microcode
*/
static int snd_sb_csp_unload(struct snd_sb_csp * p)
{
if (p->running & SNDRV_SB_CSP_ST_RUNNING)
return -EBUSY;
if (!(p->running & SNDRV_SB_CSP_ST_LOADED))
return -ENXIO;
/* clear supported formats */
p->acc_format = 0;
p->acc_channels = p->acc_width = p->acc_rates = 0;
/* destroy QSound mixer element */
if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
snd_sb_qsound_destroy(p);
}
/* clear all flags */
p->running = 0;
p->mode = 0;
return 0;
}
/*
* send command sequence to DSP
*/
static inline int command_seq(struct snd_sb *chip, const unsigned char *seq, int size)
{
int i;
for (i = 0; i < size; i++) {
if (!snd_sbdsp_command(chip, seq[i]))
return -EIO;
}
return 0;
}
/*
* set CSP codec parameter
*/
static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val)
{
unsigned char dsp_cmd[3];
dsp_cmd[0] = 0x05; /* CSP set codec parameter */
dsp_cmd[1] = val; /* Parameter value */
dsp_cmd[2] = par; /* Parameter */
command_seq(chip, dsp_cmd, 3);
snd_sbdsp_command(chip, 0x03); /* DSP read? */
if (snd_sbdsp_get_byte(chip) != par)
return -EIO;
return 0;
}
/*
* set CSP register
*/
static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val)
{
unsigned char dsp_cmd[3];
dsp_cmd[0] = 0x0e; /* CSP set register */
dsp_cmd[1] = reg; /* CSP Register */
dsp_cmd[2] = val; /* value */
return command_seq(chip, dsp_cmd, 3);
}
/*
* read CSP register
* return < 0 -> error
*/
static int read_register(struct snd_sb *chip, unsigned char reg)
{
unsigned char dsp_cmd[2];
dsp_cmd[0] = 0x0f; /* CSP read register */
dsp_cmd[1] = reg; /* CSP Register */
command_seq(chip, dsp_cmd, 2);
return snd_sbdsp_get_byte(chip); /* Read DSP value */
}
/*
* set CSP mode register
*/
static int set_mode_register(struct snd_sb *chip, unsigned char mode)
{
unsigned char dsp_cmd[2];
dsp_cmd[0] = 0x04; /* CSP set mode register */
dsp_cmd[1] = mode; /* mode */
return command_seq(chip, dsp_cmd, 2);
}
/*
* Detect CSP
* return 0 if CSP exists.
*/
static int csp_detect(struct snd_sb *chip, int *version)
{
unsigned char csp_test1, csp_test2;
unsigned long flags;
int result = -ENODEV;
spin_lock_irqsave(&chip->reg_lock, flags);
set_codec_parameter(chip, 0x00, 0x00);
set_mode_register(chip, 0xfc); /* 0xfc = ?? */
csp_test1 = read_register(chip, 0x83);
set_register(chip, 0x83, ~csp_test1);
csp_test2 = read_register(chip, 0x83);
if (csp_test2 != (csp_test1 ^ 0xff))
goto __fail;
set_register(chip, 0x83, csp_test1);
csp_test2 = read_register(chip, 0x83);
if (csp_test2 != csp_test1)
goto __fail;
set_mode_register(chip, 0x00); /* 0x00 = ? */
*version = get_version(chip);
snd_sbdsp_reset(chip); /* reset DSP after getversion! */
if (*version >= 0x10 && *version <= 0x1f)
result = 0; /* valid version id */
__fail:
spin_unlock_irqrestore(&chip->reg_lock, flags);
return result;
}
/*
* get CSP version number
*/
static int get_version(struct snd_sb *chip)
{
unsigned char dsp_cmd[2];
dsp_cmd[0] = 0x08; /* SB_DSP_!something! */
dsp_cmd[1] = 0x03; /* get chip version id? */
command_seq(chip, dsp_cmd, 2);
return (snd_sbdsp_get_byte(chip));
}
/*
* check if the CSP version is valid
*/
static int snd_sb_csp_check_version(struct snd_sb_csp * p)
{
if (p->version < 0x10 || p->version > 0x1f) {
snd_printd("%s: Invalid CSP version: 0x%x\n", __func__, p->version);
return 1;
}
return 0;
}
/*
* download microcode to CSP (microcode should have one "main" block).
*/
static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int size, int load_flags)
{
int status, i;
int err;
int result = -EIO;
unsigned long flags;
spin_lock_irqsave(&p->chip->reg_lock, flags);
snd_sbdsp_command(p->chip, 0x01); /* CSP download command */
if (snd_sbdsp_get_byte(p->chip)) {
snd_printd("%s: Download command failed\n", __func__);
goto __fail;
}
/* Send CSP low byte (size - 1) */
snd_sbdsp_command(p->chip, (unsigned char)(size - 1));
/* Send high byte */
snd_sbdsp_command(p->chip, (unsigned char)((size - 1) >> 8));
/* send microcode sequence */
/* load from kernel space */
while (size--) {
if (!snd_sbdsp_command(p->chip, *buf++))
goto __fail;
}
if (snd_sbdsp_get_byte(p->chip))
goto __fail;
if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) {
i = 0;
/* some codecs (FastSpeech) take some time to initialize */
while (1) {
snd_sbdsp_command(p->chip, 0x03);
status = snd_sbdsp_get_byte(p->chip);
if (status == 0x55 || ++i >= 10)
break;
udelay (10);
}
if (status != 0x55) {
snd_printd("%s: Microcode initialization failed\n", __func__);
goto __fail;
}
} else {
/*
* Read mixer register SB_DSP4_DMASETUP after loading 'main' code.
* Start CSP chip if no 16bit DMA channel is set - some kind
* of autorun or perhaps a bugfix?
*/
spin_lock(&p->chip->mixer_lock);
status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP);
spin_unlock(&p->chip->mixer_lock);
if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) {
err = (set_codec_parameter(p->chip, 0xaa, 0x00) ||
set_codec_parameter(p->chip, 0xff, 0x00));
snd_sbdsp_reset(p->chip); /* really! */
if (err)
goto __fail;
set_mode_register(p->chip, 0xc0); /* c0 = STOP */
set_mode_register(p->chip, 0x70); /* 70 = RUN */
}
}
result = 0;
__fail:
spin_unlock_irqrestore(&p->chip->reg_lock, flags);
return result;
}
static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags)
{
int err;
unsigned char *kbuf;
kbuf = memdup_user(buf, size);
if (IS_ERR(kbuf))
return PTR_ERR(kbuf);
err = snd_sb_csp_load(p, kbuf, size, load_flags);
kfree(kbuf);
return err;
}
static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags)
{
static const char *const names[] = {
"sb16/mulaw_main.csp",
"sb16/alaw_main.csp",
"sb16/ima_adpcm_init.csp",
"sb16/ima_adpcm_playback.csp",
"sb16/ima_adpcm_capture.csp",
};
const struct firmware *program;
BUILD_BUG_ON(ARRAY_SIZE(names) != CSP_PROGRAM_COUNT);
program = p->csp_programs[index];
if (!program) {
int err = request_firmware(&program, names[index],
p->chip->card->dev);
if (err < 0)
return err;
p->csp_programs[index] = program;
}
return snd_sb_csp_load(p, program->data, program->size, flags);
}
/*
* autoload hardware codec if necessary
* return 0 if CSP is loaded and ready to run (p->running != 0)
*/
static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode)
{
unsigned long flags;
int err = 0;
/* if CSP is running or manually loaded then exit */
if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED))
return -EBUSY;
/* autoload microcode only if requested hardware codec is not already loaded */
if (((1U << (__force int)pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) {
p->running = SNDRV_SB_CSP_ST_AUTO;
} else {
switch (pcm_sfmt) {
case SNDRV_PCM_FORMAT_MU_LAW:
err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_MULAW, 0);
p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
break;
case SNDRV_PCM_FORMAT_A_LAW:
err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ALAW, 0);
p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
break;
case SNDRV_PCM_FORMAT_IMA_ADPCM:
err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ADPCM_INIT,
SNDRV_SB_CSP_LOAD_INITBLOCK);
if (err)
break;
if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) {
err = snd_sb_csp_firmware_load
(p, CSP_PROGRAM_ADPCM_PLAYBACK, 0);
p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE;
} else {
err = snd_sb_csp_firmware_load
(p, CSP_PROGRAM_ADPCM_CAPTURE, 0);
p->mode = SNDRV_SB_CSP_MODE_DSP_READ;
}
p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
break;
default:
/* Decouple CSP from IRQ and DMAREQ lines */
if (p->running & SNDRV_SB_CSP_ST_AUTO) {
spin_lock_irqsave(&p->chip->reg_lock, flags);
set_mode_register(p->chip, 0xfc);
set_mode_register(p->chip, 0x00);
spin_unlock_irqrestore(&p->chip->reg_lock, flags);
p->running = 0; /* clear autoloaded flag */
}
return -EINVAL;
}
if (err) {
p->acc_format = 0;
p->acc_channels = p->acc_width = p->acc_rates = 0;
p->running = 0; /* clear autoloaded flag */
p->mode = 0;
return (err);
} else {
p->running = SNDRV_SB_CSP_ST_AUTO; /* set autoloaded flag */
p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT; /* only 16 bit data */
p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO;
p->acc_rates = SNDRV_SB_CSP_RATE_ALL; /* HW codecs accept all rates */
}
}
return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO;
}
/*
* start CSP
*/
static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels)
{
unsigned char s_type; /* sample type */
unsigned char mixL, mixR;
int result = -EIO;
unsigned long flags;
if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) {
snd_printd("%s: Microcode not loaded\n", __func__);
return -ENXIO;
}
if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
snd_printd("%s: CSP already running\n", __func__);
return -EBUSY;
}
if (!(sample_width & p->acc_width)) {
snd_printd("%s: Unsupported PCM sample width\n", __func__);
return -EINVAL;
}
if (!(channels & p->acc_channels)) {
snd_printd("%s: Invalid number of channels\n", __func__);
return -EINVAL;
}
/* Mute PCM volume */
spin_lock_irqsave(&p->chip->mixer_lock, flags);
mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
spin_lock(&p->chip->reg_lock);
set_mode_register(p->chip, 0xc0); /* c0 = STOP */
set_mode_register(p->chip, 0x70); /* 70 = RUN */
s_type = 0x00;
if (channels == SNDRV_SB_CSP_MONO)
s_type = 0x11; /* 000n 000n (n = 1 if mono) */
if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT)
s_type |= 0x22; /* 00dX 00dX (d = 1 if 8 bit samples) */
if (set_codec_parameter(p->chip, 0x81, s_type)) {
snd_printd("%s: Set sample type command failed\n", __func__);
goto __fail;
}
if (set_codec_parameter(p->chip, 0x80, 0x00)) {
snd_printd("%s: Codec start command failed\n", __func__);
goto __fail;
}
p->run_width = sample_width;
p->run_channels = channels;
p->running |= SNDRV_SB_CSP_ST_RUNNING;
if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) {
set_codec_parameter(p->chip, 0xe0, 0x01);
/* enable QSound decoder */
set_codec_parameter(p->chip, 0x00, 0xff);
set_codec_parameter(p->chip, 0x01, 0xff);
p->running |= SNDRV_SB_CSP_ST_QSOUND;
/* set QSound startup value */
snd_sb_csp_qsound_transfer(p);
}
result = 0;
__fail:
spin_unlock(&p->chip->reg_lock);
/* restore PCM volume */
snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
return result;
}
/*
* stop CSP
*/
static int snd_sb_csp_stop(struct snd_sb_csp * p)
{
int result;
unsigned char mixL, mixR;
unsigned long flags;
if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
return 0;
/* Mute PCM volume */
spin_lock_irqsave(&p->chip->mixer_lock, flags);
mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
spin_lock(&p->chip->reg_lock);
if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
set_codec_parameter(p->chip, 0xe0, 0x01);
/* disable QSound decoder */
set_codec_parameter(p->chip, 0x00, 0x00);
set_codec_parameter(p->chip, 0x01, 0x00);
p->running &= ~SNDRV_SB_CSP_ST_QSOUND;
}
result = set_mode_register(p->chip, 0xc0); /* c0 = STOP */
spin_unlock(&p->chip->reg_lock);
/* restore PCM volume */
snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
if (!(result))
p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING);
return result;
}
/*
* pause CSP codec and hold DMA transfer
*/
static int snd_sb_csp_pause(struct snd_sb_csp * p)
{
int result;
unsigned long flags;
if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
return -EBUSY;
spin_lock_irqsave(&p->chip->reg_lock, flags);
result = set_codec_parameter(p->chip, 0x80, 0xff);
spin_unlock_irqrestore(&p->chip->reg_lock, flags);
if (!(result))
p->running |= SNDRV_SB_CSP_ST_PAUSED;
return result;
}
/*
* restart CSP codec and resume DMA transfer
*/
static int snd_sb_csp_restart(struct snd_sb_csp * p)
{
int result;
unsigned long flags;
if (!(p->running & SNDRV_SB_CSP_ST_PAUSED))
return -EBUSY;
spin_lock_irqsave(&p->chip->reg_lock, flags);
result = set_codec_parameter(p->chip, 0x80, 0x00);
spin_unlock_irqrestore(&p->chip->reg_lock, flags);
if (!(result))
p->running &= ~SNDRV_SB_CSP_ST_PAUSED;
return result;
}
/* ------------------------------ */
/*
* QSound mixer control for PCM
*/
#define snd_sb_qsound_switch_info snd_ctl_boolean_mono_info
static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0;
return 0;
}
static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int change;
unsigned char nval;
nval = ucontrol->value.integer.value[0] & 0x01;
spin_lock_irqsave(&p->q_lock, flags);
change = p->q_enabled != nval;
p->q_enabled = nval;
spin_unlock_irqrestore(&p->q_lock, flags);
return change;
}
static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
return 0;
}
static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
unsigned long flags;
spin_lock_irqsave(&p->q_lock, flags);
ucontrol->value.integer.value[0] = p->qpos_left;
ucontrol->value.integer.value[1] = p->qpos_right;
spin_unlock_irqrestore(&p->q_lock, flags);
return 0;
}
static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int change;
unsigned char nval1, nval2;
nval1 = ucontrol->value.integer.value[0];
if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
nval2 = ucontrol->value.integer.value[1];
if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
spin_lock_irqsave(&p->q_lock, flags);
change = p->qpos_left != nval1 || p->qpos_right != nval2;
p->qpos_left = nval1;
p->qpos_right = nval2;
p->qpos_changed = change;
spin_unlock_irqrestore(&p->q_lock, flags);
return change;
}
static const struct snd_kcontrol_new snd_sb_qsound_switch = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "3D Control - Switch",
.info = snd_sb_qsound_switch_info,
.get = snd_sb_qsound_switch_get,
.put = snd_sb_qsound_switch_put
};
static const struct snd_kcontrol_new snd_sb_qsound_space = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "3D Control - Space",
.info = snd_sb_qsound_space_info,
.get = snd_sb_qsound_space_get,
.put = snd_sb_qsound_space_put
};
static int snd_sb_qsound_build(struct snd_sb_csp * p)
{
struct snd_card *card;
int err;
if (snd_BUG_ON(!p))
return -EINVAL;
card = p->chip->card;
p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2;
p->qpos_changed = 0;
spin_lock_init(&p->q_lock);
if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0)
goto __error;
if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0)
goto __error;
return 0;
__error:
snd_sb_qsound_destroy(p);
return err;
}
static void snd_sb_qsound_destroy(struct snd_sb_csp * p)
{
struct snd_card *card;
unsigned long flags;
if (snd_BUG_ON(!p))
return;
card = p->chip->card;
down_write(&card->controls_rwsem);
if (p->qsound_switch)
snd_ctl_remove(card, p->qsound_switch);
if (p->qsound_space)
snd_ctl_remove(card, p->qsound_space);
up_write(&card->controls_rwsem);
/* cancel pending transfer of QSound parameters */
spin_lock_irqsave (&p->q_lock, flags);
p->qpos_changed = 0;
spin_unlock_irqrestore (&p->q_lock, flags);
}
/*
* Transfer qsound parameters to CSP,
* function should be called from interrupt routine
*/
static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p)
{
int err = -ENXIO;
spin_lock(&p->q_lock);
if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
set_codec_parameter(p->chip, 0xe0, 0x01);
/* left channel */
set_codec_parameter(p->chip, 0x00, p->qpos_left);
set_codec_parameter(p->chip, 0x02, 0x00);
/* right channel */
set_codec_parameter(p->chip, 0x00, p->qpos_right);
set_codec_parameter(p->chip, 0x03, 0x00);
err = 0;
}
p->qpos_changed = 0;
spin_unlock(&p->q_lock);
return err;
}
/* ------------------------------ */
/*
* proc interface
*/
static int init_proc_entry(struct snd_sb_csp * p, int device)
{
char name[16];
sprintf(name, "cspD%d", device);
snd_card_ro_proc_new(p->chip->card, name, p, info_read);
return 0;
}
static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
{
struct snd_sb_csp *p = entry->private_data;
snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n", (p->version >> 4), (p->version & 0x0f));
snd_iprintf(buffer, "State: %cx%c%c%c\n", ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'),
((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'),
((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'),
((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-'));
if (p->running & SNDRV_SB_CSP_ST_LOADED) {
snd_iprintf(buffer, "Codec: %s [func #%d]\n", p->codec_name, p->func_nr);
snd_iprintf(buffer, "Sample rates: ");
if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) {
snd_iprintf(buffer, "All\n");
} else {
snd_iprintf(buffer, "%s%s%s%s\n",
((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : ""),
((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : ""),
((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : ""),
((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : ""));
}
if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
snd_iprintf(buffer, "QSound decoder %sabled\n",
p->q_enabled ? "en" : "dis");
} else {
snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n",
p->acc_format,
((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-"),
((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-"),
((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-"),
((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-"),
((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-"),
((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-"));
}
}
if (p->running & SNDRV_SB_CSP_ST_AUTO) {
snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n");
}
if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
snd_iprintf(buffer, "Processing %dbit %s PCM samples\n",
((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8),
((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo"));
}
if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n",
p->qpos_left, p->qpos_right);
}
}
/* */
EXPORT_SYMBOL(snd_sb_csp_new);
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